Home / 54,306.95-81,440.45-18,759.23

Finding the Fourth Proportional to 54,306.95, 81,440.45 and 18,759.23

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Solution

The fourth proportional to 54,306.95, 81,440.45 and 18,759.23 is: 28,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,306.95 : 81,440.45 = 18,759.23 : x
  2. Step 2: Convert to fraction form
    54,306.95/81,440.45 = 18,759.23/x
  3. Step 3: Cross multiply
    54,306.95x = 81,440.45 × 18,759.23
  4. Step 4: Simplify right side
    54,306.95x = 1,527,759,702.20
  5. Step 5: Solve for x
    x = 1,527,759,702.20/54,306.95
  6. Step 6: Final answer
    x = 28,131.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.